31804240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{577}}^1$

素因数の和:656

約数の個数: 80

約数和(自身を含む): 81276048

約数和(自身を除く): 49471808

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 424, 520, 530, 577, 689, 848, 1040, 1060, 1154, 1378, 2120, 2308, 2756, 2885, 3445, 4240, 4616, 5512, 5770, 6890, 7501, 9232, 11024, 11540, 13780, 15002, 23080, 27560, 30004, 30581, 37505, 46160, 55120, 60008, 61162, 75010, 120016, 122324, 150020, 152905, 244648, 300040, 305810, 397553, 489296, 600080, 611620, 795106, 1223240, 1590212, 1987765, 2446480, 3180424, 3975530, 6360848, 7951060, 15902120, 31804240]

約数ペア:

[(1, 31804240), (2, 15902120), (4, 7951060), (5, 6360848), (8, 3975530), (10, 3180424), (13, 2446480), (16, 1987765), (20, 1590212), (26, 1223240), (40, 795106), (52, 611620), (53, 600080), (65, 489296), (80, 397553), (104, 305810), (106, 300040), (130, 244648), (208, 152905), (212, 150020), (260, 122324), (265, 120016), (424, 75010), (520, 61162), (530, 60008), (577, 55120), (689, 46160), (848, 37505), (1040, 30581), (1060, 30004), (1154, 27560), (1378, 23080), (2120, 15002), (2308, 13780), (2756, 11540), (2885, 11024), (3445, 9232), (4240, 7501), (4616, 6890), (5512, 5770)]